docs: def rpms(self):
          """(:class:`productmd.rpms.Rpms`) -- Compose RPMs metadata"""
          if self._rpms is not None:
              return self._rpms
  
          paths = [
              "metadata/rpms.json",
              "metadata/rpm-manifest.json",
          ]
          self._rpms = self._load_metadata(paths, productmd.rpms.Rpms)
          return self._rpms